| Date | IP Address |
| 2016-06-29 | 52.196.86.72 (ClassC) |
| 2019-11-15 | 3.115.145.226 (ClassC) |
| 2025-06-15 | 52.198.171.152 (ClassC) |
| 2025-07-15 | 43.206.0.113 (ClassC) |
| 2025-09-14 | 52.193.238.132 (ClassC) |
| 2025-11-15 | 3.113.104.25 (ClassC) |
| Date | Domain | IP |
| houmu-gyosei.ochi-office.jp | 2025-06-06 | 18.179.172.21 |
| www.ochi-office.jp | 2025-06-15 | 52.198.171.152 |